Demographic structure, genetic diversity and habitat distribution of the endangered, Australian rainforest tree Macadamia jansenii help facilitate an introduction program
Alison Shapcott A B and Michael Powell A
+ Author Affiliations
- Author Affiliations
A University of the Sunshine Coast, Maroochydore DC, Qld 4558, Australia.
B Corresponding author. Email: ashapcot@usc.edu.au
Australian Journal of Botany 59(3) 215-225 https://doi.org/10.1071/BT10132
Submitted: 25 May 2010 Accepted: 9 March 2011 Published: 9 May 2011
Abstract
Macadamia jansenii is endemic to south-east Queensland, Australia, and is currently known from a single population 180 km north of the nearest wild population of its congener, the edible Macadamia integrifolia. A recently developed Macadamia recovery plan identified that this population was under significant threat and recommended a reintroduction program to safeguard against chance extinction of the single wild population. This study undertook demographic population census surveys, genetic analysis, habitat analysis and niche modelling to determine the potential long-term viability for the species, and to guide search and reintroduction programs. We expanded the known population size of the species to ~60 individuals (1 m and taller) spread over a 900-m distance along a single creek clumped into three subpopulations. There was moderate genetic diversity in the species and the subpopulations showed little genetic differentiation. We developed a potential habitat model combining abiotic variables and vegetation associations, and mapped areas of potentially suitable habitat for M. jansenii within its local area. These maps are being used to target searches for other populations and to guide the location of introduction populations.
References
Alsos IG, Alm T, Normand S, Brochmann C (2008) Past and future range shifts and loss of diversity in dwarf willow (Salix herbacea L.) inferred from genetics, fossils and modelling. Global Ecology and Biogeography 17, 1–17.Bowman DMJS (2000) ‘Australian rainforests: islands of green in a land of fire.’ (Cambridge University Press: Cambridge)
Byrne M, Elliott CP, Yates C, Coates DJ (2007) Extensive pollen dispersal in a bird-pollinated shrub, Calothamnus quadrifidus, in a fragmented landscape. Molecular Ecology 16, 1303–1314.
| Extensive pollen dispersal in a bird-pollinated shrub, Calothamnus quadrifidus, in a fragmented landscape.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2sXkvVKruro%3D&md5=781b9cdf0e6f935a8c71bb19d1e4647cCAS | 17391415PubMed |
Byrne M, Elliott C, Yates C, Coates D (2008) Maintenance of high pollen dispersal in Eucalyptus wandoo, a dominant tree of the fragmented agricultural region in Western Australia. Conservation Genetics 9, 97–105.
| Maintenance of high pollen dispersal in Eucalyptus wandoo, a dominant tree of the fragmented agricultural region in Western Australia.Crossref | GoogleScholarGoogle Scholar |
Channell R, Lomolino M (2000) Dynamic biogeography and conservation of endangered species. Nature 403, 84–86.
| Dynamic biogeography and conservation of endangered species.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3cXlvVSgug%3D%3D&md5=a7033f846f4b1e4b8aec6ec91be0c110CAS | 10638757PubMed |
Collins BG, Rebelo T (1987) Pollination biology of the Proteaceae in Australia and Southern Africa. Australian Journal of Ecology 12, 387–421.
| Pollination biology of the Proteaceae in Australia and Southern Africa.Crossref | GoogleScholarGoogle Scholar |
Costello G, Gregory M, Donatiu P (2009) Southern Macadamia Species Recovery Plan 2008–2112. Report to Department of the Environment and Heritage, Canberra.
Cornuet M, Luikart G (1996) Description and power analysis of two tests for detecting recent population bottlenecks from allele frequency data. Genetics 144, 2001–2014.
Dahler JM, Maconchie CA, Turnbull CGN (1995) Quantification of cyanogenic glycosides in seedlings of three macadamia (Proteaceae) species. Australian Journal of Botany 43, 619–628.
| Quantification of cyanogenic glycosides in seedlings of three macadamia (Proteaceae) species.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaK28Xit12rs7o%3D&md5=54cb985ab54b44120f36f40a9ddde6bbCAS |
Dick CW, Etchelecu G, Austerlitz F (2003) Pollen dispersal of tropical trees (Dinizia excelsa, Fabaceae) by native insects and African honeybees in pristine and fragmented Amazonian rainforest. Molecular Ecology 12, 753–764.
| Pollen dispersal of tropical trees (Dinizia excelsa, Fabaceae) by native insects and African honeybees in pristine and fragmented Amazonian rainforest.Crossref | GoogleScholarGoogle Scholar | 12675830PubMed |
Ellstrand NC, Elam DR (1993) Population genetic consequences of small population size: implications for plant conservation. Annual Review of Ecology and Systematics 24, 217–242.
| Population genetic consequences of small population size: implications for plant conservation.Crossref | GoogleScholarGoogle Scholar |
Elmouttie D, Wilson J (2005) The potential importance of nut removal by rodents from Australian macadamia orchards. Journal of Environmental Management 77, 79–83.
| The potential importance of nut removal by rodents from Australian macadamia orchards.Crossref | GoogleScholarGoogle Scholar | 15950371PubMed |
Environment Protection and Biodiversity Conservation Act (1999) Government of Australia, Canberra, Australia. available at http://www.environment.gov.au/epbc/index.html
Etterson JR (2004) Evolutionary potential of Chamaecrista fasciculate in relation to climate change. II. Genetic architecture of three populations reciprocally transplanted along an environmental gradient in the Great Plains. Evolution 58, 1459–1471.
Falk DA, Millar CI, Olwell M (1996) ‘Restoring diversity; strategies for reintroductions of endangered plants.’ (Island Press: Washington, DC)
Fensham RJ, Fairfax RJ, Butler DW, Bowman DMJS (2003) Effects of fire and drought in a tropical eucalypt savanna colonized by rain forest. Journal of Biogeography 30, 1405–1414.
| Effects of fire and drought in a tropical eucalypt savanna colonized by rain forest.Crossref | GoogleScholarGoogle Scholar |
Fiedler PL, Laven RD (1996) Selecting reintroduction sites. In ‘Restoring diversity; strategies for reintroductions of endangered plants’. (Eds DA Falk, CI Millar, M Olwell) pp. 157–169. (Island Press: Washington, DC)
Frankham RJ, Ballou JD, Briscoe DA (2002) ‘Introduction to conservation genetics.’ (Cambridge University Press: Cambridge)
Franklin J (1995) Predictive vegetation mapping: geographic modelling of biospatial patterns in relation to environmental gradients. Progress in Physical Geography 19, 474–499.
| Predictive vegetation mapping: geographic modelling of biospatial patterns in relation to environmental gradients.Crossref | GoogleScholarGoogle Scholar |
Ghazoul J (2005) Pollen and seed dispersal among dispersed plants. Biological Reviews of the Cambridge Philosophical Society 80, 413–443.
| Pollen and seed dispersal among dispersed plants.Crossref | GoogleScholarGoogle Scholar | 16094807PubMed |
Gross CL, Weston PH (1992) Macadamia jansenii (Proteaceae) a new species from Central Queensland. Australian Systematic Botany 5, 725–728.
| Macadamia jansenii (Proteaceae) a new species from Central Queensland.Crossref | GoogleScholarGoogle Scholar |
Guisan A, Thuiller W (2005) Predicting species distribution: offering more than simple habitat models. Ecology Letters 8, 993–1009.
| Predicting species distribution: offering more than simple habitat models.Crossref | GoogleScholarGoogle Scholar |
Guisan A, Broennimann O, Engler R, Vust M, Yoccoz N, Lehmann A, Zimmermann N (2006) Using niche based models to improve the sampling of rare species. Conservation Biology 20, 501–511.
| Using niche based models to improve the sampling of rare species.Crossref | GoogleScholarGoogle Scholar | 16903111PubMed |
Hanski I, Gilpin ME (1997) ‘Metapopulation ecology, genetics and evolution.’ (Academic Press: San Diego, CA)
Hardner C, Peace C, Lowe AJ, Neal N, Pisanu P, Powell M, Schmidt A, Spain C, Williams K (2009) Genetic resources and domestication of Macadamia. Horticultural Reviews 35,1–125. (John Wiley and Sons Inc).
Hensen I, Oberprieler C (2005) Effects of population size on genetic diversity and seed production in the rare Dictamnus albus (Rutaceae) in central Germany. Conservation Genetics 6, 63–73.
| Effects of population size on genetic diversity and seed production in the rare Dictamnus albus (Rutaceae) in central Germany.Crossref | GoogleScholarGoogle Scholar |
Hoebee SE, Young AG (2001) Low neighbourhood size and high interpopulation differentiation in the endangered shrub Grevillea iaspicula McGill (Proteaceae). Heredity 86, 489–496.
| Low neighbourhood size and high interpopulation differentiation in the endangered shrub Grevillea iaspicula McGill (Proteaceae).Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BD3Mvns1WgsQ%3D%3D&md5=020d1da1985bac2bc931c7339a12bd82CAS | 11520349PubMed |
Hogbin PM, Ayre DJ, Whelan RJ (1998) Genetic variation and reproductive success of road verge populations of the rare shrub Grevillea barklyana (Proteaceae). Heredity 80, 180–186.
Jarvis A, Williams K, Williams D, Guarino L, Caballero PJ, Mottram G (2005) Use of GIS for optimizing a collecting mission for a rare wild pepper (Capsicum flexuosum Sendtn.) in Paraguay. Genetic Resources and Crop Evolution 52, 671–682.
| Use of GIS for optimizing a collecting mission for a rare wild pepper (Capsicum flexuosum Sendtn.) in Paraguay.Crossref | GoogleScholarGoogle Scholar |
Jones TA, Monaco TA (2007) A restoration practitioner’s guide to the restoration gene pool concept. Ecological Research 25, 12–19.
| A restoration practitioner’s guide to the restoration gene pool concept.Crossref | GoogleScholarGoogle Scholar |
Jump AS, Peňuelas J (2005) Running to stand still: adaptation and the response of plants to rapid climate change. Ecology Letters 8, 1010–1020.
| Running to stand still: adaptation and the response of plants to rapid climate change.Crossref | GoogleScholarGoogle Scholar |
Kooyman R, Rossetto M (2008) Definition of plant functional groups for informing implementation scenarios in resource-limited multi-species recovery planning. Biodiversity and Conservation 17, 2917–2937.
| Definition of plant functional groups for informing implementation scenarios in resource-limited multi-species recovery planning.Crossref | GoogleScholarGoogle Scholar |
Krauss SL, Hermanutz L, Hopper SD, Coates DJ (2007) Population size effects on seeds and seedlings from fragmented eucalypt populations: implications for seed sourcing for ecological restoration. Australian Journal of Botany 55, 390–399.
| Population size effects on seeds and seedlings from fragmented eucalypt populations: implications for seed sourcing for ecological restoration.Crossref | GoogleScholarGoogle Scholar |
Lamont BB, Klinkhamer GL, Witkowski ETF (1993) Population fragmentation may reduce fertility to zero in Banksia goodie – a demonstration of the Allee effect. Oecologia 94, 446–450.
| Population fragmentation may reduce fertility to zero in Banksia goodie – a demonstration of the Allee effect.Crossref | GoogleScholarGoogle Scholar |
Leimu RA, Mutikainen P, Koricheva J, Fischer M (2006) How general are positive relationships between plant population size, fitness and genetic variation? Journal of Ecology 94, 942–952.
| How general are positive relationships between plant population size, fitness and genetic variation?Crossref | GoogleScholarGoogle Scholar |
Mast AR, Willis CL, Jones EH, Downs KM, Weston PH (2008) A smaller Macadamia from a more vagile tribe: inference of phylogenetic relationships, divergence times, and diaspore evolution in Macadamia and relatives (tribe Macadamieae; Proteaceae). American Journal of Botany 95, 843–870.
| A smaller Macadamia from a more vagile tribe: inference of phylogenetic relationships, divergence times, and diaspore evolution in Macadamia and relatives (tribe Macadamieae; Proteaceae).Crossref | GoogleScholarGoogle Scholar |
McKay JK, Christian CE, Harrison S, Rice KJ (2005) ‘How local is local?’ A review of practical and conceptual issues in the genetics of restoration. Restoration Ecology 13, 432–440.
| ‘How local is local?’ A review of practical and conceptual issues in the genetics of restoration.Crossref | GoogleScholarGoogle Scholar |
Menges ES (1990) Population viability for an endangered plant. Conservation Biology 4, 52–62.
| Population viability for an endangered plant.Crossref | GoogleScholarGoogle Scholar |
Miller J, Franklin J, Aspinall R (2007) Incorporating spatial dependence in predictive vegetation models. Ecological Modelling 202, 225–242.
| Incorporating spatial dependence in predictive vegetation models.Crossref | GoogleScholarGoogle Scholar |
Montalvo AM, Williams SJ, Rice KJ, Buchmann SL, Cory C, Handel SN, Nabhan GP, Primack R, Robichaux RH (1997) Restoration biology: a population perspective. Restoration Ecology 5, 277–290.
| Restoration biology: a population perspective.Crossref | GoogleScholarGoogle Scholar |
Murawski DA, Hamrick JL (1991) The effect of the density of flowering individuals on the mating systems of nine tropical tree species. The Journal of Heredity 67, 167–174.
| The effect of the density of flowering individuals on the mating systems of nine tropical tree species.Crossref | GoogleScholarGoogle Scholar |
Neal JM (2007) The impact of habitat fragmentation on wild Macadamia integrifolia Maiden and Betche (Proteaceae) population viability. PhD Thesis, University of New England, Armidale.
O’Brien EK, Mazanec RA, Krauss SL (2007) Provenance variation of ecologically important traits of forest trees; implications for restoration. Journal of Applied Ecology 44, 583–593.
| Provenance variation of ecologically important traits of forest trees; implications for restoration.Crossref | GoogleScholarGoogle Scholar |
Peakall R, Smouse PE (2005) ‘GenAlEx V6: genetic analysis in Excel. Population genetic software for teaching and research.’ (Australian National University: Canberra)
Peace CP (2005) Genetic characterisation of macadamia with DNA markers. PhD Thesis, University of Queensland, St Lucia.
Pfab MF, Witkowski ETF (1997) Use of geographic information systems in the search for additional populations, or sites suitable for re-establishment, of the endangered northern province endemic Euphorbia clivicola. South African Journal of Botany 63, 351–355.
Pisanu PC (2001) Survivorship of the threatened subtropical rainforest tree Macadamia tetraphylla L.Johnson (Proteaceae) in small habitat fragments. PhD Thesis, University of New England, Armidale.
Pisanu PC, Gross CL, Flood L (2009) Reproduction in wild populations of the threatened tree Macadamia tetrapylla: inter population pollen enriches fecundity in a declining species. Biotropica 41, 391–398.
| Reproduction in wild populations of the threatened tree Macadamia tetrapylla: inter population pollen enriches fecundity in a declining species.Crossref | GoogleScholarGoogle Scholar |
Pickup M, McDougall KL, Whelan RJ (2003) Fire and flood: soil stored seedbank and germination ecology in the endangered Carrington Falls grevillea (Grevillea rivularis, Proteaceae). Austral Ecology 28, 128–136.
| Fire and flood: soil stored seedbank and germination ecology in the endangered Carrington Falls grevillea (Grevillea rivularis, Proteaceae).Crossref | GoogleScholarGoogle Scholar |
Possley J, Maschinski J, Rodriguez C, Griffin Dozier J (2009) Alternatives for reintroducing a rare ecotone species: manually thinned forest edge versus restored habitat remnant. Restoration Ecology 17, 668–677.
| Alternatives for reintroducing a rare ecotone species: manually thinned forest edge versus restored habitat remnant.Crossref | GoogleScholarGoogle Scholar |
Powell M (2009) Predicting the geographic distributions of Macadamia integrifolia and Macadamia ternifolia. PhD Thesis, University of the Sunshine Coast, Maroochydore, Australia.
Powell M, Accad A, Shapcott A (2005) Geographic information system (GIS) predictions of past, present habitat distribution and areas for re-introduction of the endangered subtropical rainforest shrub Triunia robusta (Proteaceae) from south-east Queensland Australia. Biological Conservation 123, 165–175.
| Geographic information system (GIS) predictions of past, present habitat distribution and areas for re-introduction of the endangered subtropical rainforest shrub Triunia robusta (Proteaceae) from south-east Queensland Australia.Crossref | GoogleScholarGoogle Scholar |
Powell M, Accad A, Austin MP, Low Choy S, Williams KJ, Shapcott A (2010) Assessment of loss and fragmentation of a rare species habitat with niche models developed from compiled ecological data. Biological Conservation 143, 1385–1396.
| Assessment of loss and fragmentation of a rare species habitat with niche models developed from compiled ecological data.Crossref | GoogleScholarGoogle Scholar |
Queensland Herbarium (2009) ‘Survey and mapping of vegetation communities and regional ecosystems of Queensland. Version 6.0b. Pre-clearing and 2006b extent.’ Queensland Herbarium, Brisbane, Queensland, Australia.
Queensland Nature Conservation Act (1992) Available at www.legislation.qld.gov.au/LEGISLTN/CURRENT/N/NatureConA92.pdf (accessed 23 March 2011)
Regional Ecosystem Description Database (2007) Queensland Department of Environment and Resource Management. Available at http://www.derm.qld.gov.au/wildlife-ecosystems/biodiversity/regional_ecosystems/index.php (accessed 23 March 2011)
Ren H, Zhand Q, Wang Z, Guo Q, Wang J, Liu N, Liang K (2010) Conservation and possible reintroduction of an endangered plant based on an analysis of community ecology: a case study of Primula tabacum Hance in China. Plant Species Biology 25, 43–50.
| Conservation and possible reintroduction of an endangered plant based on an analysis of community ecology: a case study of Primula tabacum Hance in China.Crossref | GoogleScholarGoogle Scholar |
Rossetto M, Kooyman RM (2005) The tension between dispersal and persistence regulates the current distribution of rare paleo-endemic rain forest flora: a case study. Journal of Ecology 93, 906–917.
| The tension between dispersal and persistence regulates the current distribution of rare paleo-endemic rain forest flora: a case study.Crossref | GoogleScholarGoogle Scholar |
Rossetto M, Kooyman RK, Sherwin W, Jones R (2008) Dispersal limitations, rather than bottlenecks or habitat specificity, can restrict the distribution of rate and endemic rainforest trees. American Journal of Botany 95, 321–329.
| Dispersal limitations, rather than bottlenecks or habitat specificity, can restrict the distribution of rate and endemic rainforest trees.Crossref | GoogleScholarGoogle Scholar |
Salem BB (2003) Application of GIS to biodiversity monitoring. Journal of Arid Environments 54, 91–114.
| Application of GIS to biodiversity monitoring.Crossref | GoogleScholarGoogle Scholar |
Schmidt AL, Scott L, Lowe AJ (2006) Isolation and characterization of microsatellite loci from Macadamia. Molecular Ecology Notes 6, 1060–1063.
| Isolation and characterization of microsatellite loci from Macadamia.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2sXmsl2ruw%3D%3D&md5=9f999cf9a0b853eabf9b6352f758e08aCAS |
Shapcott A (2002) Conservation genetics and ecology of the endangered rainforest shrub Triunia robusta from the Sunshine Coast, Australia. Australian Journal of Botany 50, 93–105.
| Conservation genetics and ecology of the endangered rainforest shrub Triunia robusta from the Sunshine Coast, Australia.Crossref | GoogleScholarGoogle Scholar |
Shapcott A, Olsen M, Lamont RW (2009) The importance of genetic considerations for planning translocations in the rare heathland species Boronia rivularis. Ecological Research 27, 47–57.
| The importance of genetic considerations for planning translocations in the rare heathland species Boronia rivularis.Crossref | GoogleScholarGoogle Scholar |
Smith-Ramirez C, Armesto JJ (2003) Foraging behaviour of bird pollinators on Embothrium coccineum (Proteaceae) trees in forest fragments and pastures in southern Chile. Austral Ecology 28, 53–60.
| Foraging behaviour of bird pollinators on Embothrium coccineum (Proteaceae) trees in forest fragments and pastures in southern Chile.Crossref | GoogleScholarGoogle Scholar |
Steiger DL, Moore PH, Zee F, Liu Z, Ming R (2003) Genetic relationships of macadamia cultivars and species revealed by AFLP markers. Euphytica 132, 269–277.
| Genetic relationships of macadamia cultivars and species revealed by AFLP markers.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3sXmtVGruro%3D&md5=dd4b82f2e2d25b18c1392a71f5e4c019CAS |
Spain C (2006) The impacts of sub-tropical rainforest fragmentation on Macadamia tetraphylla populations at the genetic and habitat scales. Honours Thesis, University of Queensland, St Lucia Brisbane, QLD.
Stephenson RA, Gallagher EC (1987) Effects of temperature and tree water status and relative humidity on premature nut drop from macadamia. Scientia Horticulturae 33, 113–121.
| Effects of temperature and tree water status and relative humidity on premature nut drop from macadamia.Crossref | GoogleScholarGoogle Scholar |
Thomas CD, Cameron A, Green RE, Bakkenes M, Beaumont LJ, Collingham YC, Erasmus BFN, Ferreira de Siqueira M, Grainger A, Hannah L, Hughes L, Huntley B, van Jaarsveld AS, Midgley GF, Miles L, Ortega-Huerta MA, Townsend Peterson A, Phillips OL, Williams SE (2004) Extinction risk from climate change. Nature 427, 145–148.
| Extinction risk from climate change.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2cXhtFOgtQ%3D%3D&md5=19f6a1151463d4f6f61638636831e480CAS | 14712274PubMed |
Walker BA, Whelan RJ (1991) Can andromonoecy explain low fruit : flower ratios in the Proteaceae? Biological Journal of the Linnean Society. Linnean Society of London 44, 41–46.
| Can andromonoecy explain low fruit : flower ratios in the Proteaceae?Crossref | GoogleScholarGoogle Scholar |
Wu XB, Smeins FE (2000) Multiple-scale habitat modelling approach for rare plant conservation. Landscape and Urban Planning 51, 11–28.
| Multiple-scale habitat modelling approach for rare plant conservation.Crossref | GoogleScholarGoogle Scholar |
Yates CJ, Elliott C, Byrne M, Coates DJ, Fairman R (2007) Seed production, germinability and seedling growth for a shrub in fragments of species rich kwongan in south-west Australia. Biological Conservation 136, 306–314.
| Seed production, germinability and seedling growth for a shrub in fragments of species rich kwongan in south-west Australia.Crossref | GoogleScholarGoogle Scholar |
Young AG, Clarke GM (2000) ‘Genetics, demography and viability of fragmented populations.’ (Cambridge University Press: Cambridge)
